Automatic valve.



H. 0. KNAPP.

AUTOMATIC VALVE.

APPucArlon FILED Auw, 1914.

1,1 34,621 Patented Apr. 6, 1915.

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' ma x IN V ENTOR l Wold diaza,

l' claimed, having reference to the accompany'- ing drawings, in vWhich 1 l vBe it known that I, HARQLD spraying Water onsugar in a 'centrifugal UN-1E.'

Essonne, KNAPP, orgcn'ooKETT, CALIFORNIA. 'i'

To all lwhom' 4it 'may concern.'

O. KNMP, a citizen of the'- United States residing at Crockettin the county'of Contra Costaand State ofl California, have invented new7 and useful Improvements in Automatic Valvesf spring 16.

of which the following isa specification.

This invention relates'to 'a-valve. mechanism, and pertains especiallyI to an automatic valveprimarily designed foruse- 1n- Iwgmachine, btit manifestly applicable for other purposes.

'l`hef'objectsofthe invention are to pro.'-A vide a simple, reliable device Vto permit of a' definite interval of Itime between the setting l ofthe machine and thefovv of theflnid through-the valve; to give a constant volume,"

'of fluid for each oper-ation of the Adevice;l to

provide .easy means for varying the m'ount of fluid. and f0r'.varying the tim'einterval between the setting of the machine and the "floWLof fluid; and to enable a nnmber of tion of the invention. Fig. 2^is an. end view I cal' position the valve vcase'-2 and forming suitable -bearings for the. worin-' shaft 3; which latter may be-operated throngh the nut 10 which rests on vthe worm shaft 3l..

The nut, or carriage, or actuator, 'as it vmay automatic'valvesto be driven from'the same source and consequently .permit of the speed of all. the valves` bveingl regulated vfrom onel pont. 1 The invention consists, ofthe parts and the construction and lcombination of parts as hereinafter lm ore fully `describedf and Figure 1 isa sidev elevationV in'pa'rtialsecl ofthe same taken onl line 2-2, Fig.- 1.Y

A is a suitable frame,fsupporting in verti pulley 4 1: from anysuitable'sourceof power.

5 is a valve" maintained normally-inclosed posltion by a sprlng 6 to cut'l communication between the inlet 7 and outlet 8i l9'is a. valve stem 'projei'zting into the path.

of the beveled nose of a traveling segmental be termed, has"a projection -11 '.slidable on a rod '12 disposed parallel with the screw 3'; a handle 13 'on'vthe nut enabling it to be shift.-

Aed to any desired point on the screw.

14 is an adjustable stopjcollaronthe' rod 12 limiting thebackward movement of the 15 is an unthreaded cylindrical surface at Specification f `Lettera Patent.

j ing thezfluid pressure constant or'varying 'the' luid pressure'- without changing the f f the end of the vsc`1A'eW, towa rd which the nut I.

isadapted'totravel,which is adapted to r e ceiv'e the nut and allowl it to come to' rest after passing beneath the valve stem 9. The

nutis maintained in traveling contact with vthe screw by appropriate means,A zas `the,

In operation, the. nntiishl raised fromthe driving screw'by means, of the handle 13 so as to clear'the valve stem and then slid back aga-inst the valve rod 12 ntil 'itcontacts raten-tea Apice, 1915. Application med august a, n1914. serial N'ol'ssmos.

vwith the adjustable collar 14, At this point i the-nut is dropped upon-the driving screw.

The latter being Arotated at constant speed and -in a direction tod'rive the-nut forward, the latter will in .due time contact with the stem 9, lift-it5 and 'maintain-the valve-open until the nut'has passed fronbeneath the valve stem, again alloWing-the'valve -to close i under the action ofthe' spring- 6; thefcarriage.'passing tothe unthread'ed portion 15 'the volume of fluid Adelivered, ,assuming a constant 'iuid pressure;. It Willbe manifest thatthe amount -of'lluid passing the valve'" lmay be increased ordecreased either by varying the speed-ofthe screw andmalntalnspeed of thescrew;

While I coupled iip to the saine-'Qscr from one point.

`Various changesin :form. proportions and the specific design shown.

and construction vhere Having combination ofa 'valve havinga valve .'ste'm, va worm, a segmental traveling nut on the yWorin engageable 'with 'the."valve.1fst em to frepeated. Shifting the position of .the col- *The speed of travel of thescrewdetermines have .shovvn Yonly one vantomatic valve', it is manifestthat a' number may be ew and'operated .minor details of construction 'may be lresortl ed to Within the scope of the appended y claims and I donot Wishfto limit myselfto thusdescribediniyinvention,what i I claim and desire'ito secnre by Letters -I'os s6@ and consegue'ntly predetermines .the time between the startingof the'machine and the actuatethevalve, a guide rod parallel with .A

the worm on which the nut is adapted to slide, and a handle for shifting the nut along the worm.

2. ln an automatic valve mechanism, the combination of a valve having a valveastem, a worm, a. segmental traveling nut on the worm engageable with the valve stem to` actuate the valve, said worm having an unthreaded portion at the limit of forward travel of the nut, and an adjustable guide for limiting the travel of the nut in the opposite direction.

3. In combination with a slidable valve, an actuator therefor to unseat same by wipmg contact therewith,and constantly driven means to operate the actuator, said actuator being shiftable at will along the length of the operating means so as to predeterminately vary the length of time at which the valve will be unseatedvA from the commencement of movement of the actuator.

4. In combination with a valve, an actuator therefor to unseat same, constantly driven means to operate the actuator, said actuator being shiftable at will along the length of the operating means, adjustable means adapted to be set at different positions ad- ]acent the operating means to engage and hmit the extent of movement of the actuator on the operating means, and means whereby the actuator is placed out of operative connectlon with the operating means subsequent to the actuator unseating the valve.

5. lln combination with a valve, an actuator therefor to unseat same, constantly drlven means to operate the actuator, said actuator being shiftable at will along the length of the operating means, and adjustable means adapted to he set at di'erent positions adjacent the operating means to enmisa-ear gage and 1 the actuator on the operating means.

6. lin combination with a slidable vve, an actuator therefor to unseat the valve by wiping contact therewith, constantly rotated dr1v1ng means for the actuator, and means whereby the actuator will be placed but of driving connection with said means subsequent to the actuator unseating the valve.

7. lln combination with a valve, an actuator ,therefor to unseat the valve, a constantly rotated driving shaft having threads, and a nut engaged with the threads formed to unseat the valve by engagement therewith, said threads terminating at a point to one side of the valve whereby after the nut has unseated the valve same will be disengaged from the threads to thereby render the connection between the shaft and nut inoperative.

8. ln combination with a valve and an' witnesses.

HAROLD 0. KNAPP.

Witnesses: A

FRANS lonnnmnnz, H. A. Ramsar.

:aft the extent of movement of 

